Pioneer TS-SW2002D2 Shallow-mount 8" subwoofer with dual 2-ohm voice coils at Crutchfield
Pioneer TS-Z10LS2 10" Single 2 ohms Voice Coil Car Subwoofer
Pioneer TS-W312D4 | Car Entertainment, Subwoofers, Champion Series Subwoofer, Champion Series Red Subwoofer | Pioneer Middle East - Car Stereo, Car Subwoofer, Amplifier
1x Pioneer TS-300D4 12 inch 1400 Watts 4-Ohm Dual Voice Coil Car Audio Subwoofer 637740964585 | eBay